<script setup>
import { ref } from 'vue'
import { flatMap, isEmpty, reject } from 'lodash'
import Add from '@/components/icons/Add.vue'
import Delete from '@/components/icons/Delete.vue'
import IconButton from '@/components/common/IconButton.vue'

const props = defineProps({
  value: Array,
})
const emit = defineEmits(['update:value', 'append'])

/**
 * @typedef ZSetItem
 * @property {string} value
 * @property {string} score
 */
const zset = ref([{ value: '', score: 0 }])
const onCreate = () => {
  return {
    value: '',
    score: 0,
  }
}
/**
 * update input items
 */
const onUpdate = () => {
  const val = reject(zset.value, (v) => v == null || isEmpty(v.value))
  emit(
    'update:value',
    flatMap(val, (item) => [item.value, item.score.toString()]),
  )
}

defineExpose({
  validate: () => {
    return !isEmpty(props.value)
  },
})
</script>

<template>
  <n-form-item :label="$t('dialogue.field.conflict_handle')" required>
    <n-dynamic-input v-model:value="zset" @create="onCreate" @update:value="onUpdate">
      <template #default="{ value }">
        <n-input
          v-model:value="value.value"
          :placeholder="$t('dialogue.field.enter_member')"
          type="text"
          @update:value="onUpdate" />
        <n-input-number
          v-model:value="value.score"
          :placeholder="$t('dialogue.field.enter_score')"
          :show-button="false"
          @update:value="onUpdate" />
      </template>
      <template #action="{ index, create, remove, move }">
        <icon-button v-if="zset.length > 1" :icon="Delete" size="18" @click="() => remove(index)" />
        <icon-button
          :icon="Add"
          size="18"
          @click="
            () => {
              create(index)
              emit('append')
            }
          " />
      </template>
    </n-dynamic-input>
  </n-form-item>
</template>

<style lang="scss"></style>
